Alicia Silverstone felt "sexy" while in labour with her son.

Promoting her new book, 'The Kind Mama,' the 37-year-old star told 'Live! With Kelly & Michael': "The first 14 hours was almost sexy. The [hormone] oxytocin was doing all this magic and it felt amazing. And then it got less than amazing. It got really intense as labour is. And, yeah, it didn't end up as I planned but the whole juicy story is in the book."

The 'Suburgatory' beauty endured 27 hours of labour before she was forced to undergo an emergency Caesarean section.

Alicia has previously attracted criticism for some of her parenting skills, including chewing her son's food before giving it to him, and ingesting her placenta through a pill.

But she told 'Good Morning America': "As far as critics, I'm very secure in the choices I make because I'm really informed and I trust my instincts and when I need help, I go to the people I see parent or birth or be pregnant in a way that was really inspiring me. And the rest is just noise."

Asked if she wants more children, she said: "Definitely eventually. But I'm really loving and enjoying Bear right now. I want to finish a few things and then definitely want another baby but not yet."